Simplify Square Root of 12780

Here we will show you two methods that you can use to simplify the square root of 12780. In other words, we will show you how to find the square root of 12780 in its simplest radical form using two different methods.

To be more specific, we have created an illustration below showing what we want to calculate. Our goal is to make "A" outside the radical (√) as large as possible, and "B" inside the radical (√) as small as possible.

√12780 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 12780 to simplify the square root of 12780. This is how to calculate A and B using this method:

A = Calculate the square root of the greatest perfect square from the list of all factors of 12780. The factors of 12780 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, and 12780. Furthermore, the greatest perfect square on this list is 36 and the square root of 36 is 6. Therefore, A equals 6.

B = Calculate 12780 divided by the greatest perfect square from the list of all factors of 12780. We determined above that the greatest perfect square from the list of all factors of 12780 is 36. Furthermore, 12780 divided by 36 is 355, therefore B equals 355.

Now we have A and B and can get our answer to 12780 in its simplest radical form as follows:

√12780 = A√B

√12780 = 6√355

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 12780 to simplify the square root of 12780 to its simplest form possible. This is how to calculate A and B using this method:

A = Multiply all the double prime factors (pairs) of 12780 and then take the square root of that product. The prime factors that multiply together to make 12780 are 2 x 2 x 3 x 3 x 5 x 71. When we strip out the pairs only, we get 2 x 2 x 3 x 3 = 36 and the square root of 36 is 6. Therefore, A equals 6.

B = Divide 12780 by the number (A) squared. 6 squared is 36 and 12780 divided by 36 is 355. Therefore, B equals 355.

Once again we have A and B and can get our answer to 12780 in its simplest radical form as follows:

√12780 = A√B

√12780 = 6√355

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